Was the ever any doubt? Of course Batman was going to come first! He is perfect example that you don't need any special superpowers to be one of the world's greatest superheroes. He has the best rogues gallery out of the entire DC Universe and Marvel Universe since he has the Joker, Riddler, Two-Face, Deathstroke, Poison Ivy, Penguin, Catwoman, Hush, Scarecrow, Hugo Strange, Ra's Al Ghul, Killer Croc, Scarface and the Ventriloquist, Mad Hatter, Mr Freeze, Harley Quinn, Deadshot, Black Mask, Court of Owls, Owlman and so much more! He owns the cool Batmobile, Batwing, Batboat, Batbike, Bat Computer, Bat Cave, Gadgets, and many more. He is also intelligent and always outsmarts his enemies, no matter how powerful. With prep time, he can take on literally anyone, even the entire Justice League. He also comes with most of the best stories, comics and his own hit video games such Batman: Arkham Origins, Batman: Arkham Asylum, Batman: Arkham City and Batman Arkham Knight. Not to mention the amazing prequel show Gotham. Batman is the world's greatest detective and for excellent reasons. He created many members of the Bat Family such as Nightwing, Red Hood, Red Robin, Batgirl, Batwoman, Batwing, Black Bat, Misfit and many more. He is also a founding member of the Justice League. While he is pretty anti social and the only member the Justice League fears, he would make a great leader or co-leader since he can outsmart literally anybody. Seriously, Batman is without a doubt the greatest superhero ever. He has no powers but is a perfect example that you don't need special powers to be one of the greatest superheroes of all time and the perfect example that proves that brains always beat brawn.